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Add macro KERNAUX_CONTAINER_OF (#100)

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* Add macro KERNAUX_CONTAINER_OF
* Add includes
* Add "examples/macro_container_of"
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Alex Kotov 2022-06-27 14:08:32 +03:00 • committed by GitHub
parent f5ae8400c0
commit febd43c987
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6 changed files with 54 additions and 4 deletions
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include/kernaux/macro.h
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@ -5,6 +5,12 @@
extern "C" {
#endif
#include <stddef.h>
#include <stdint.h>
#define KERNAUX_CONTAINER_OF(ptr, type, member) \
((type*)((uintptr_t)(ptr) - offsetof(type, member)))
#ifdef KERNAUX_ACCESS_PRIVATE
# define KERNAUX_PRIVATE_FIELD(id) id
# define KERNAUX_PROTECTED_FIELD(id) id